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| Core java - Interview Questions and Answers for 'Egen solutions' - 3 question(s) found - Order By Newest | ||||
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| Ans. OOPs or Object Oriented Programming is a Programming model which is organized around Objects instead of processes. Instead of a process calling series of processes, this model stresses on communication between objects. Objects that all self sustained, provide security by encapsulating it's members and providing abstracted interfaces over the functions it performs. OOP's facilitate the following features 1. Inheritance for Code Reuse 2. Abstraction for modularity, maintenance and agility 3. Encapsulation for security and protection 4. Polymorphism for flexibility and interfacing | ||||
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 Discuss Correct / Improve  oops oops features  Asked in 260 Companies  basic  frequent | ||||
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 Can you give a real world example of Encapsulation and Abstraction ? | ||||
| Which of the following Java feature promotes access protection or Hiding ? a. Inheritance b. Encapsulation c. Abstraction d. Composition | ||||
| Define encapsulation in Java ? | ||||
| Give an example of how Object Oriented Programming Concepts can be implemented. | ||||
| Which of the OOP's features facilitate dependency injection ? | ||||
| Which of the OOP's feature - encapsulation or abstraction - is more important ? | ||||
| Which of the polymorphism type - static or runtime - is more important ? | ||||
| Which of the OOP's feature is most important ? | ||||
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| Ans. Yes, We can call garbage collector directly but it doesn't guarantees that the gc will start executing immediately. This gc( ) method appears in both Runtime and System classes of java.lang package. | ||||
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| Discuss Correct / Improve java garbage collection java memory management jvm gc yes no Asked in 4 Companies expert | ||||
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| Ans. Externalizable is an interface which contains two methods readExternal and writeExternal. These methods give you a control over the serialization mechanism. | ||||
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| Discuss Correct / Improve java serialization externalizable interface Asked in 2 Companies intermediate rare | ||||
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